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algol [13]
3 years ago
6

The amplitude of a wave is measured from

Chemistry
1 answer:
lys-0071 [83]3 years ago
7 0
Answer: Resting position
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Explain how you determine molar mass of Ca(No3)2
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164

1st step we will write desperate molar mass of each element

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Choose all of the answers that are correct when describing this atom.
gregori [183]
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xeze [42]

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2 years ago
Morphine is a well known pain killer but is highly addictive. The lethal dose of morphine varies from person to person based on
Aliun [14]

Answer:

0.252 milimoles

Explanation:

To convert mass of a substance to moles it is necessary to use the molar mass of the substance.

The formula of morphine is C₁₇H₁₉NO₃, thus, its molar mass is:

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H: 19*1.01g/mol = 19.19g/mol

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O: 3*16g/mol = 48g/mol.

204.17 + 19.19 + 14 + 16 = <em>285.36g/mol</em>

Thus, moles of 71.891 mg = 0.071891g:

0.071891g × (1mol / 285.36g) = 2.5193x10⁻⁴ moles

As 1 mole = 1000 milimoles:

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